Q1) What are the six different types of argument values in COBOL that can be placed in various options of a CICS command?

A1)

• ·Data Value                 – EX (Literal 8 or 77 KEYLEN PIC S9(4) COMP VALUE 8.)
• ·Data Area   – EX  (01 RECORD-AREA.

05 FIELD1 PIC X(5). )

• ·Pointer-Ref                – EX (05 POINTER-I PIC S9(8) COMP. )
• ·Name                           – EX (05 FILE-NAME PIC X(5) VALUE ‘FILEA’. )
• ·Label                           - Cobol paragraph name
• ·HHMMSS   – EX (77 TIMEVAL PIC S9(7) COMP3. )

 

Q2) Kindly specify the PIC clause for the following

Any BLL Cell, Data type of Length Option field, HHMMSS type of data fields

A2) Any BLL Cell                                               -  S9(8) COMP

Data type of Length Option field             -  S9(4) COMP

HHMMSS type of data fields   -  S9(7) COMP3

 

Q3) Specify CICS transaction initiation process. (From the perspective of CICS control programs and control tables.)

A3) TCP places data in TIOA and corresponding entry into TCT.

KCP acquires the transaction identifier from TIOA and verifies if it is present in PCT.

SCP acquires Storage in Task Control Area (TCA), in which KCP prepares control data for the task.

KCP then loads the application programs mentioned in PCT by looking for it in PPT.

If resident – real storage memory location is not present in the PPT the control is passed to PCP that loads the application programs from the physical storage location address given in PPT. The control is then passed to the application program (LOAD module).

 

Q4) List the sequence of steps used to achieve “Modification in Skip Sequential Mode.”

A4)

I.     READNEXT command

II.    Issue the ENDBR command

III.  Issue the READ command with UDTAE option.

IV.  Manipulate the record (DELETE or REWRITE command)

V.    Issue START command

VI.  Issue two READNEXT commands (One for dummy skip)

VII. Go to step two.

 

Q5) Specify the requirements for Automatic Task Initiation. (Mention the control table, it’s entries and the corresponding Procedure division CICS command).

A5) DFHDCT       TYPE=INTRA,

DESTID=MSGS,

TRANSID=MSW1,

TRIGLEV=1000

 

EXEC CICS WRITEQ TD

                        QUEUE(‘MSGS’),

                        FROM(DATA-AREA),

                        LENGTH(MSG_LEN)

END-EXEC.

 

Q6) What are the commands used to gain exclusive control over a resource (for Ex a Temporary storage queue.)?

A6) EXEC CICS ENQ                                        EXEC CICS DEQ

        RESOURCE(QID)                                               RESOURCE(QID)

END-EXEC                                                   END-EXEC

 

Q7) What is the EIB parameter and the CICS command used to implement Pseudo-Conversational technique using single PCT – Single PPT entry?

A7) EIBCALEN – To check if COMMAREA has been passed in terurn command.

EXEC CICS RETURN

TRANSID(data-name)

       COMMAREA(data-area)

                LENGTH(data-value)

END-EXEC

 

Q8) Mention the 5 fields available in the symbolic map for every ‘NAMED’ field in the DFHMDI macro? Give a brief description of these fields (Not exceeding a line).

A8) FIELD+L       – Return the length of text entered (or for dymanic cursor positioing)

FIELD+F       – Returns X(80) if data entered but erased.

FIELD+A      – Used for attributes reading and setting

FIELD+I        – Used for reading the text entered while receiving the map.

FIELD+O      – Used for sending information on  to the MAP.

 

Q9) What are the two ways of breaking a CPU bound process to allow other tasks to gain access to CPU.

A9) EXEC CICS DELAY                                                  EXEC CICS DELAY

INTERVAL(hhmmss)                                                        TIME(hhmmss)

END-EXEC                                                                   END-EXEC

 

POST and WAIT commands also achieve the same result.

 

Q10)   How do you initiate another transaction? The transaction initiated should be in a position to retrieve information pertaining to which transaction has initiated it and from which terminal. (Code the required CICS commands)

A10)   EXEC CICS START

INTERVAL(hhmmss)/TIME(hhmmss)

                        TRANSID(‘TRAN’)

                        TERMID(‘TRM1)

FROM(data-area)

                                LENGTH(data-value)

                        RTRANSID(EIBTRNID)

                        RTERMID(EIBTRMID)

END-EXEC

 

EXEC CICS RETRIEVE

                                INTO(data-area)

                                LENGTH(data-value)

                                RTRANSID(data-name)

                                RTERMID(data-name)

           END-EXEC

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